Planoobapi



w. KRAFVE.

AUTOMOBILE SPRING.

Patented July 15, 1919.

APPLICATION FILED JUNE 6. 1918 wrrsn STATES PATENT orrrcn.

WILLIAM KRAFVE, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR T0 CAPITOL MOTORS CORPORATION, OF FALL RIVER, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

To all whom it may concern:

Be it known that I, IVILLIAM KRAFVE, a citizen of the United States, residlng at Fall Itiver, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Automobile-Springs, of which the following is a specification.

This invention relates to certain new and useful improvements in automobile springs, and pertains more particularly to means for anchoring or securing the springs to the axle.

The use of clips in anchoring the spring, particularly the rear spring, to the axle, has been found to be objectionable, due to the clips straddling the spring, which is now the general custom.

The present invention aims to avoid this straddling of the rear axle by the commonly employed clips, and accordingly contemplates springs which are provided with anchoring means enabling anchorage to the rear axle in a positive and certain manner but without the objection hereinabove noted.

Briefly, the invention proposes to form one or more of the top leaves of the spring with lateral extensions that are perforated similarly to the perforated portions of the bed formed on the axle, and to connect such extensions to the axle bed by the use of bolts, to thereby rigidly secure the center of the spring to the axle bed.

In the drawings Figure 1 is a side elevation of a spring according to the present invention.

Fig. 2 is a top plan view of Fig. 1.

Fig. 3 is a fragmentary side elevation of a modified form of the invention, and

Fig. 4 is a top plan view of the upper leaf of Fig. 3.

I11 accordance with the present invention, the top leaf 1 of the spring, or the tOp leaf and the next adjacent lower leaf 2, is each formed with a pair of oppositely extending plate-like extensions 3 and 4, which are located at approximately the center of the spring. The extensions are of substantially rectangular form as depicted in Fig. 2, of the drawings, and are each formed with a bolt hole 5 at the outer sides of the same. In case, such as that instanced in Fig. 1, where the two top leaves are provided with the extensions, then the bolt holes of the two extensions are in register as illustrated in Fig. 1.

Specification of Letters Patent.

Application filed June 6, 1918.

Patented July 15, 1919.

Serial No. 238,419.

In Figs. 3 and 4, a modified form of the invention is illustrated so as to provide for the application of the invention to springs already constructed and thereby accomplish the same result. Accordingly a top leaf 6 is provided having lateral extensions 7 provided with bolt holes 8, the extensions being similar to the extensions 3 and 4 in the other form of the invention. The ends of the top leaf are provided with abutments 9 shaped to engage the usual eyes 10 formed on the previously constructed spring. In the form of the invention shown in Figs. 1 and 2, the eyes 11 are formed in the top layer or leaf or layers or leaves according as to whether one or more top leaves are provided with the extensions 3 and 4, the eyes interengaging where two are employed.

The extensions not only provide bolt anchors, but in addition provide enlarged bearings which overlie the axle bed, serving to more effectively support the spring.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a vehicle spring, a series of leaves, the topmost leaf having an integral lateral extension on each side thereof and in the plane of and at about the transverse center of the leaf, said extensions being perforated to receive bolts and providing anchors for the latter. 1

2. In a vehicle spring, a series of leaves, the topmost leaf being provided with laterally extending integral anchoring means on each side thereof, said anchoring means being perforated so as to engage bolts for securing the spring to the vehicle axle.

3. In a vehicle spring, a series of leaves, the uppermost leaf having an integral anchoring extension projecting outwardly from each side thereof, each extension having a perforation in each end and at points beyond the sides of the leaves.

4. In a vehicle spring, a series of leaves, laterally extending integral anchoring means on each side thereof, said anchoring means being formed so as to receive fastening means that extend therethrough to securely anchor the spring to the vehicle axle.

5. In combination with a vehicle spring having an eye at each end, a leaf having abutments at its ends to engage said eyes, said leaf having a lateral extension on each side thereof and at about the transverse cen ter of the leaf, said extensions being perforated to receive bolts for securing the spring to the vehicle axle.

6. In combination With a vehicle spring having an eye at each end, a leaf having an abutment at each of its ends engaged with the respective eyes of the spring, and means integral with the leaf and extending outwardly from the opposite sides thereof for coeperating with means for securing the leaf 10 to the vehlcle axle.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

WILLIAM KRAFVE. Witnesses ADA E. HAGERTY, J. A. MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G. 

